package chapter04.example015;
class Animal{
    public void shout(){
        System.out.println("喵喵喵......");
    }
}
class Dog extends Animal{
    public void shout(){
        System.out.println("汪汪汪...");
    }
    public void eat(){
        System.out.println("吃骨头.....");
    }
}


public class Example15 {
    public static void main(String[] args) {
        Dog dog = new Dog();
        Animal a1 = dog;
        a1.shout();
//        a1.eat();  Animal没有eat方法所以eat无法使用
    }
}
